As part of their green initiative and to additionally avoid potential devastation from future tornadoes, the first Eco-Silo Home was built to withstand winds in excess of 200 mph -- the average force of an EF5 tornado.

One natural disaster, the most powerful of which occurred in the U.S., that garnered little press internationally but nonetheless was overwhelming to those that lived through it, was the EF5 tornado in the Southwest corner of Kansas on May 4, 2007.

Whether using the old Fujita or the Enhanced Fujita scale, John Moore ignores the obvious — although tornadoes can form anywhere, F5 and EF5 tornadoes have never been observed in or east of the Appalachian Mountains.